why threre are two parallel lines in transformer's symbol?

11 Answers   NTPC,

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How to dimensioning SDCCH, LAPD and CS7 signaling on GSM?

1 Answers  

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Why two main buses and one transfer bus scheme not using for 400kV switchyard

5 Answers  

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What is the basic difference between directional and non directional over current protection?

1 Answers  

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which pump used in WTP explain the function of VFD how to dtermine capacitorbank of capacity one plant

0 Answers   Dalkia,

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1. Why is the speed of shunt motor practically constant? 2. Why dc series motor use to start with heavy loads? 3. advantages & disadvantages of separately excited generator over self excited generator?

0 Answers  

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what is the minimum insulation resistance for HT AND LT motor ?

3 Answers  

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I have 2500KVA transformer delta/star,13.8KV/380V provided with LV 4000A breaker. Already I have 2300KW motor feeder with a full load 90%. Is it possible to connect another 1600A from that breaker? If so how the calculation is done?

0 Answers  

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How to calculate the sag on transmission Lines.

0 Answers  

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what is ICU and ICS in breaker ratings

1 Answers   QAFCO,

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What is the actual calculation for transformer short circuit test?.

0 Answers  

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i need to now what will be the cable size to the following load, transformer to distribution panel distance 110m, load 1000kw, voltage 400v, pf 0.85, permissible voltage drop 2.0%, overhead line, atmospheric temperature 35 degree c.

0 Answers   Bay Fishing Corporation,

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